Was thinking on it some more: I had said reversed and while that IS possible, wouldn't make much sense because who really screws with the factory lighting much? Unless you redid the dash or something. Anyway, what would make sense is the switchleg for the dash and brake lights are not reversed, but either in the switch or out in the chassis are making contact with the brake light hot. Same area and same schematic, just looking for something a little different. Bad switch? Insulation rubbed away and making contact? You know your car and what areas were disturbed better than I.